Risk & Capital Management Seminar

Zurich, 4 June 2007, 12pm to 5pm (CET) The aim of the seminar is to help investors, analysts and media understand UBS's approach to risk and capital management in the context of the firm's growth strategy.

UBS Fixed Income Businesses Investor Day

Boston, March 28th, 2007 The purpose of this day is to explore the fixed income markets and to describe products and structural growth characteristics. The business continues to develop in size, global reach and diversity. Senior UBS fixed income managers will explain the key drivers across multiple product areas and our plans for capturing significant growth opportunities.

This communication contains statements that constitute forward-looking statements", including, but not limited to, statements relating to the implementation of strategic initiatives, such as the European wealth management business, and other statements relating to our future business development and economic performance.

While these forward-looking statements represent our judgments and future expectations concerning the development of our business, a number of risks, uncertainties and other important factors could cause actual developments and results to differ materially from our expectations.

These factors include, but are not limited to, (1) general market, macro-economic, governmental and regulatory trends, (2) movements in local and international securities markets, currency exchange rates and interest rates, (3) competitive pressures, (4) technological developments, (5) changes in the financial position or credit worthiness of our customers, obligors and counterparties and developments in the markets in which they operate, (6) legislative developments, (7) management changes and changes to our Business Group structure and (8) other key factors that we have indicated could adversely affect our business and financial performance which are contained in other parts of this document and in our past and future filings and reports, including those filed with the SEC.

More detailed information about those factors is set forth elsewhere in this document and in documents furnished by UBS and filings made by UBS with the SEC, including UBS's Annual Report on Form 20-F for the year ended 31 December 2006. UBS is not under any obligation to (and expressly disclaims any such obligations to) update or alter its forward-looking statements whether as a result of new information, future events, or otherwise.